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Proton is a photovoltaic module in which a bacterium is capable of using solar energy with efficiency up to 98% to generate a proton gradient that is transformable to electricity. This exploitation of solar energy is a result of centuries of evolution of the bacterium to adapt to environments lacking solar light.

It’s a photovoltaic module made with low cost materials and production process, those costs are similar to the ones of producing a combustible cell. In this way, the energy production cost is reduced up to 6 times.